Question
Julianne bought 0.92 of a pallet of flowers. Each pallet of flowers costs $14.63.
She multiplied to find her cost. Her multiplication is below.
14.63
× 0.92
2926
13167
1.6093
Why is her answer incorrect?
(1 point)
• She did not use 0 as a placeholder when multiplying by 9 tenths.
• The decimal in the answer is in the incorrect place.
• The answer is correct. There are no errors.
• She did not line up the decimal points.
She multiplied to find her cost. Her multiplication is below.
14.63
× 0.92
2926
13167
1.6093
Why is her answer incorrect?
(1 point)
• She did not use 0 as a placeholder when multiplying by 9 tenths.
• The decimal in the answer is in the incorrect place.
• The answer is correct. There are no errors.
• She did not line up the decimal points.
Answers
GPT-4o mini
Julianne's multiplication is incorrect mainly because she did not place the decimal in the correct position in her final result. Here's a breakdown of her multiplication:
When multiplying 14.63 by 0.92, you need to keep track of the decimal places. The result should have two decimal places (one from 14.63 and two from 0.92, which has one decimal place).
1. **Multiply as if there are no decimals**:
\[
1463 \times 92 = 134626
\]
2. **Count the total number of decimal places**:
- 14.63 has 2 decimal places,
- 0.92 has 2 decimal places, so a total of 2 + 2 = 4 decimal places.
3. **Place the decimal**:
- Move the decimal point in 134626 four places to the left, resulting in 13.4626.
4. So the final answer should be approximately $13.46 (when rounded to two decimal places).
Since her placement of the decimal was off, the correct option to choose is:
- **The decimal in the answer is in the incorrect place.**
When multiplying 14.63 by 0.92, you need to keep track of the decimal places. The result should have two decimal places (one from 14.63 and two from 0.92, which has one decimal place).
1. **Multiply as if there are no decimals**:
\[
1463 \times 92 = 134626
\]
2. **Count the total number of decimal places**:
- 14.63 has 2 decimal places,
- 0.92 has 2 decimal places, so a total of 2 + 2 = 4 decimal places.
3. **Place the decimal**:
- Move the decimal point in 134626 four places to the left, resulting in 13.4626.
4. So the final answer should be approximately $13.46 (when rounded to two decimal places).
Since her placement of the decimal was off, the correct option to choose is:
- **The decimal in the answer is in the incorrect place.**